<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>品牌管理</title>
    <link rel="stylesheet" href="./js/bootstrap-4.4.1-dist/css/bootstrap.min.css" />
    <script src="./js/moment.js"></script>
    <style>
      .red {
        color: red;
      }
    </style>
  </head>
  <body>
    <div id="app">
      <div class="container">
        <!-- 顶部搜索框模块 -->
        <div class="form-group">
          <div class="input-group">
            <h4>品牌管理</h4>
          </div>
        </div>

        <!-- 数据表格 -->
        <table class="table table-bordered table-hover mt-2">
          <thead>
            <tr>
              <th>编号</th>
              <th>资产名称</th>
              <th>价格</th>
              <th>创建时间</th>
              <th>操作</th>
            </tr>
          </thead>
          <tbody v-if="list.length>0">
            <tr v-for="(p,index) in list" :key="index">
              <td>{{p.id}}</td>
              <td>{{p.name}}</td>

              <!-- 如果价格超过100，就有red这个类 -->
              <td :class="{red:p.price>100}">{{p.price}}</td>
              <td>{{dataFormateTime(p.time)}}</td>
              <td><a href="#" @click.prevent="del(p.id)">删除</a></td>
            </tr>
            <tr style="background-color: #eee">
              <td>统计:</td>
              <td colspan="2">总价钱为: {{totalPiceC}}</td>
              <td colspan="2">平均价: {{avgPric()}}</td>
            </tr>
          </tbody>
          <tfoot v-if="list.length<=0">
            <tr>
              <td colspan="5" style="text-align: center">暂无数据</td>
            </tr>
          </tfoot>
        </table>

        <!-- 添加资产 -->
        <form class="form-inline">
          <div class="form-group">
            <div class="input-group">
              <input
                type="text"
                class="form-control"
                placeholder="资产名称"
                v-model="commodity.name"
              />
            </div>
          </div>
          &nbsp;&nbsp;&nbsp;&nbsp;
          <div class="form-group">
            <div class="input-group">
              <input
                type="text"
                class="form-control"
                placeholder="价格"
                v-model="commodity.price"
              />
            </div>
          </div>
          &nbsp;&nbsp;&nbsp;&nbsp;
          <!-- 阻止表单提交 -->
          <button class="btn btn-primary" @click.prevent="addCommodity">
            添加资产
          </button>
        </form>
      </div>
    </div>
    <script src="./js/2.7.14_dist_vue.js"></script>
    <script>
      const app = new Vue({
        el: "#app",
        data: {
          id: 103,
          //   name: "", // 名称
          //   price: 0, // 价格
          commodity: {},
          list: [
            {
              id: 100,
              name: "外套",
              price: 199,
              time: new Date("2010-08-12"),
            },
            { id: 101, name: "裤子", price: 34, time: new Date("2013-09-01") },
            { id: 102, name: "鞋", price: 25.4, time: new Date("2018-11-22") },
            {
              id: 103,
              name: "头发",
              price: 19900,
              time: new Date("2020-12-12"),
            },
          ],
        },
        methods: {
          addCommodity() {
            this.id = this.id + 1;
            this.commodity.id = this.id;
            this.commodity.time = new Date();
            this.list.push(this.commodity);
            this.commodity = {};
          },
          dataFormateTime(time) {
            return moment(time).format("YYYY-MM-DD HH:mm:ss");
          },
          //删除
          del(id) {
            this.list = this.list.filter((item) => item.id != id);
          },
          //总价格
          totalPice() {
            let total = this.list.reduce((total, item) => {
              return total + parseFloat(item.price);
            }, 0);
            return total.toFixed(2);
          },
          //平均价
          avgPric() {
            let avg = this.list.reduce((total, item, index) => {
              if (index != this.list.length - 1) {
                return total + parseFloat(item.price);
              } else {
                return (total + parseFloat(item.price)) / this.list.length;
              }
            }, 0);
            return avg.toFixed(2);
          },
        },
        computed: {
          totalPiceC() {
            return this.totalPice();
          },
        },
      });
    </script>
  </body>
</html>
